医生说这次受伤过后有机会留下疤。

Yīshēng shuō zhè cì shòushāng guòhòu yǒu jīhuì liúxià bā.

The doctor said this injury might leave a scar.

我的腿上有一道疤。

Wǒde tuǐ shàng yǒu yí dào bā.

I have a scar on my leg.

因为交通意外，我的脸上留下了一道很深的疤。

Yīnwèi jiāotōng yìwài, wǒde liǎn shàng liúxiàle yí dào hěn shēn de bā.

Because of a traffic accident, a deep scar was left on my face.